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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 256 · 40 questions
TalentJR

What you do (Rub and charge): 1. Tear a sheet of paper into tiny bits on a table. 2. Comb dry, clean hair quickly 10 times. 3. Hold the comb just above the paper bits and watch. 4. Try again with 20 combs, and count the bits each time.

NameDateTime takenScore ___ / 40
  1. 1.True or false: puffed rice jumps to a charged comb. (a) True (b) False
  2. 2.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
  3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) the same comb (c) the same hair (d) distance to the paper
  4. 4.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) tiny paper bits (d) a battery cell
  5. 5.True or false: a heavy book jumps to a charged comb. (a) True (b) False
  6. 6.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
  7. 7.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
  8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
  9. 9.⚡ A rubbed comb is held near thermocol bits. What happens? (a) does not move (b) jumps to the comb
  10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we measure it (c) we keep it the same
  11. 11.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
  12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
  13. 13.True or false: vinegar is needed for the static comb. (a) True (b) False
  14. 14.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it turns into water (d) it sticks for a while
  15. 15.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) a heavy book (d) puffed rice
  16. 16.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
  17. 17.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a magnet (c) tiny paper bits (d) dry hair
  18. 18.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) dry hair (c) a thin water stream (d) a pebble
  19. 19.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) False (b) True
  20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same comb (b) number of rubs (c) paper bits picked up
  21. 21.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a mirror (c) dry hair (d) tiny paper bits
  22. 22.True or false: a mirror is needed for the static comb. (a) False (b) True
  23. 23.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
  24. 24.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
  25. 25.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
  26. 26.🧺 Which of these is needed for the static comb? (a) a plastic comb (b) vinegar (c) a battery cell (d) a mirror
  27. 27.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
  28. 28.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) damp air leaks charge (c) water adds charge (d) dry days are noisy
  29. 29.True or false: a pebble does not move to a charged comb. (a) False (b) True
  30. 30.🔍 Which is the odd one out? (a) a brick (b) thermocol bits (c) a heavy book (d) a pebble
  31. 31.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) static electricity (c) sunlight (d) magnetism
  32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) number of rubs (c) the same hair (d) the paper bit size
  33. 33.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
  34. 34.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) a heavy book (d) dry hair
  35. 35.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
  36. 36.True or false: a magnet is needed for the static comb. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) puffed rice (b) a heavy book (c) thermocol bits (d) tiny paper bits
  38. 38.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
  39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) True (b) False
  40. 40.True or false: dry hair does not move to a charged comb. (a) False (b) True

Answer key

  1. True
  2. not needed
  3. number of rubs
  4. a battery cell
  5. False
  6. True
  7. not needed
  8. True
  9. jumps to the comb
  10. we keep it the same
  11. needed
  12. we keep it the same
  13. False
  14. it sticks for a while
  15. a heavy book
  16. needed
  17. a magnet
  18. a pebble
  19. True
  20. the same comb
  21. a mirror
  22. False
  23. jumps to the comb
  24. does not move
  25. does not move
  26. a plastic comb
  27. not needed
  28. damp air leaks charge
  29. True
  30. thermocol bits
  31. static electricity
  32. paper bits picked up
  33. needed
  34. dry hair
  35. not needed
  36. False
  37. a heavy book
  38. True
  39. True
  40. False

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